Just out of curiosity why are you unable to get the module but can get the bluetooth antenna. I am going to assume the GM will not actually allow you to get it for consumers.

The module they only giveus on an exchange basis where we send back the old identical one. As far as the antenna we can get it because it is not a "restricted" item. Right now we can only get the modules under warranty concerns with supply of a vin and we have to send back the bad one or for fire or wrecked cars where we still have to send back the destroyed one